More links:

[url]http://www.tf2outpost.com/trade/5570075[/url] - Offers include Ebenezer (8 keys) and a Genuine Sleeping Dogs set + sweets (9-11 keys?). Trade has been open for 2-3 weeks, the latter offer is being considered.

[url]http://www.tf2outpost.com/trade/6162027[/url] - Buyout of 20 keys, no offers, unsold

[url]http://www.tf2pricecheck.net/Thread-PC-Massed-Flies-Magnificent-Mongolian[/url] - Someone sold for 15 keys worth of items in July after collecting offers for 2 weeks and thought it was a good deal.

[url]http://www.tf2outpost.com/trade/4850689[/url] and [url]http://www.tf2outpost.com/trade/4898095[/url] - Offers of 10-14 keys

[url]http://www.tf2outpost.com/trade/4719756[/url] - Buying unusuals for 10-16 keys, offered Flies Mongolian but exact price not stated

[url]http://www.tf2outpost.com/trade/6156282[/url] - Offers of Bills + sweets

[url]http://www.tf2outpost.com/trade/3876389[/url] - 14 key offer

[url]http://www.tf2outpost.com/trade/5813020[/url] - Offered to sell it together with orbiting fire gym rat (worth ~20 keys) for ~34 keys.

[url]http://www.tf2outpost.com/trade/5818248[/url] - Sold for 10 keys just 7 days ago